From TV Tropes:
The Marquis de Favras was caught by the Revolutionaries as he plotted to help Louis XVI escape. Convicted of treason after a two month trial, he was handed his official death sentence by the court clerk as he was led to the scaffold. He read it and said “I see that you have made three spelling mistakes.”
By the way: if you’re not familiar with that site then I suggest that you be wary of clicking links, particularly if you need to be somewhere in the next eight hours.